初中英语句型转换 基本助动词只有三个：be, do, have, 他们没有词汇意义，只有语法作用，如协助构成进行体，完成体，被动态，否定句，疑问句等。 一、 肯定句改否定句的方法——一步法 1. 有be 动词/情态动词：在 be 动词/情态动词后后加 not。 2. 无 be 动词/情态动词，在动词前加 don’t/doesn’t/didn’t。 3. some 改成any。 4. 情态动词：can，will，should，must，may。 把下列句子变成否定句： 1. I am listening to music. _______________________________________ 2. Mike is a student. _______________________________________ 3. Sarah can clean the classroom. ________________________________________ 4. They are in the zoo. ________________________________________ 5. There are some flowers in the vase. ________________________________________ 6. This is my sister. _________________________________________ 7. We are sweeping the floor. __________________________________________ 8. We need some masks. _________________________________ 9. They like making the puppet. _________________________________ 10. Su Hai and Su Yang live in a new house. _________________________________________________ 11. I put a book on my head. _________________________________________________ 12. They sing “In the classroom” together. _______________________________________________ 13. We play basketball on Sundays. _________________________________________________ 14. Tom likes listening to music ____________________________________________ 二、 肯定句改一般疑问句的方法——三步法 1. 有be 动词/情态动词：be 动词/情态动词提到句首，其余照抄，(some 改成any，my改成your）句末用问号。 2. 无 be 动词/情态动词，在句首加 Do/Does/Did，其余照抄，(some 改成any，my改成your）句末用问号。 3. 加 Does、did 的句子注意，句子动词要变成原型。 例如： 陈述句: They are in the park. He can play the guitar.. 一般疑问句: Are they in the park? Can he play the guitar? 陈述句: I ...
